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Siluriformes (Catfishes) >
Heptapteridae (Three-barbeled catfishes)
Etymology: Phenacorhamdia: Greek, phenax, -akos = deceptive + Brazilian vernacular name, Nhamdia/Jamdia (Ref. 45335).
محیط زیست: محیط زیست / منطقه آب و هوایی / تغييرات عمق / محدوده توزیع
بوم شناسي
; آب شيرين نزديك كف زي. Tropical
South America: Orinoco River basin, Venezuela.
اندازه / وزن / سن
بلوغ: Lm ? range ? - ? cm
Max length : 4.0 cm SL جنس نر / بدون خواص جنسي; (Ref. 36914)
توصيف مختصر
كليدهاي شناسايي | ريخت شناسي | ريخت ستجي بوسيله انداره گيري
شعاع نرم باله پشتي (کل) : 7; شعاع نرم باله مخرجي: 12 - 15; مهره ها: 41 - 43. This species differs from its congeners by the following set of characteristics: maxillary barbel reaching three fourths along pectoral fin; outer mental barbel not reaching pectoral-fin base; gill rakers on first branchial arch 5-7; vertebrae 41-43; pleural ribs 9; pectoral fin with modally seven branched rays; first basal radial of dorsal fin inserted posterior to vertebrae 11-12; anal fin with 12-15 rays (7-9 branched); caudal-fin lobes pointed; upper caudal-fin lobe with 7 branched rays; lower caudal-fin lobe markedly longer than upper caudal-fin lobe (29.8-33.5% of SL, 1.5 times in HL); pigmentation of the body uniform; cleithral width, 13.6-14.5% of SL; anal-fin base, 12.1-14.8% of SL; caudal peduncle depth, 5.7-6.9% of SL; head length, 20.1-22.2% of SL, 4.5-4.9 times in SL (Ref. 78618).
Body shape (shape guide): elongated; Cross section: compressed.
Inhabits rivers (Ref. 6868).
چرخه زندگی و رفتار جفتگیری
بلوغ | تولید مثل | تخم ریزی | تخم ها | باروری | توزاد ( لارو)
Bockmann, F.A. and G.M. Guazzelli, 2003. Heptapteridae (Heptapterids). p. 406-431. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 36914)
وضعيت در فهرست قرمز IUCN (Ref. 130435: Version 2025-2 (Global))
خطر برای انسان ها
Harmless
استفاده انسانی
ابزارها
گزارش های ويژه
بارگيری XML
منابع اينترنتي
تخمینها بر اساس مدلها
شاخص تنوع فیلوژنتیکی (مرجع
82804): PD
50 = 0.5002 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00813 (0.00379 - 0.01743), b=2.97 (2.79 - 3.15), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
سطح تروفیک (مرجع
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
آسیبپذیری ماهیگیری (Ref.
59153): Low vulnerability (10 of 100).
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